Pith Number

pith:H7M6Y5HM

pith:2018:H7M6Y5HMSTITWJC7EIVVYBLMXS

not attested not anchored not stored refs pending

The Hubble Catalog of Variables (HCV)

A. Karampelas, A. Nota, A. Rest, A. Z. Bonanos, B. C. Whitmore, C. Arviset, D. Hatzidimitriou, D. Lennon, E. Pouliasis, G. Kakaletris, I. Bellas-Velidis, I. Georgantopoulos, K. Tsinganos, K. V. Sokolovsky, L. Strolger, M. I. Moretti, M. Yang, N. Laskaris, P. Gavras, R. Downes, R. White, S. Lubow, T. Budavari, V. Charmandaris, Z. Spetsieri

arxiv:1803.04974 v1 · 2018-03-13 · astro-ph.IM · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H7M6Y5HMSTITWJC7EIVVYBLMXS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T00:01:23.487736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fd9ec74ec94d13b245f222b5c056cbcbc41ec233b1134416b99f7a7c9eb5fc1

Aliases

arxiv: 1803.04974 · arxiv_version: 1803.04974v1 · doi: 10.48550/arxiv.1803.04974 · pith_short_12: H7M6Y5HMSTIT · pith_short_16: H7M6Y5HMSTITWJC7 · pith_short_8: H7M6Y5HM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/H7M6Y5HMSTITWJC7EIVVYBLMXS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3fd9ec74ec94d13b245f222b5c056cbcbc41ec233b1134416b99f7a7c9eb5fc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba58842b28c6271894f47f989b2ef731c9a76ed717a60ed111a7d693624013a6",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-03-13T18:00:00Z",
    "title_canon_sha256": "74d1be8a74e62a71a41ec4c99e2215b3e76ba852452dd021597661aff53201af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04974",
    "kind": "arxiv",
    "version": 1
  }
}